Avaya B5800 Bedienungsanleitung PDF herunterladen (Seite 69)

Rack mounting

The B5800 Branch Gateway control unit and external expansion units can be rack mounted

into 19-inch rack systems. This requires a rack mounting kit for each unit.

The rack mounting kit includes:

• A rack mounting bracket and screws for attachment of the bracket to the unit

• Nuts and bolts for rack attachment

• Brackets and cable ties for cable tidying

Environmental requirements

In addition to the environmental requirements on page 49, the following factors must be

considered when rack mounting a unit:

• Rack positioning — Ensure compliance with the rack manufacturers safety instructions.

For example check that the rack legs have been lowered and fixing brackets have been

used to stop toppling.

• Elevated operating ambient — If installed in a closed or multi-unit rack assembly, the

operating ambient temperature of the rack environment may be greater than room

ambient. Therefore, consideration should be given to installing the equipment in an

environment compatible with the maximum ambient temperature (Tma) specified by the

manufacturer.

- Operating temperature: 0°C (32°F) to 40°C (104°F).

- Operating humidity: 10% to 95% non-condensing.

• Reduced air flow — Installation of the equipment in a rack should be such that the amount

of air flow required for safe operation of the equipment is not compromised. Proper

ventilation must be maintained. The side ventilation slots on the control unit should not

be covered or blocked.

• Mechanical loading — Mounting of the equipment in the rack should be such that a

hazardous condition is not achieved due to uneven mechanical loading.

• Circuit overloading — Consideration should be given to the connection of the equipment

to the supply circuit and the effect that overloading of the circuits might have on

overcurrent protection and supply wiring. Appropriate consideration of equipment

nameplate ratings should be used when addressing this concern.

• Reliable earthing — Reliable earthing of rack-mounted equipment should be maintained.

Particular attention should be given to supply connections other than direct connections

to the branch circuit (e.g. use of power strips).

Rack mounting

Implementing B5800 Branch Gateway for a CS 1000 Configuration October 2012 69

1 2 ... 64 65 66 67 68 69 70 71 72 73 74 ... 323 324

Keine Kommentare

Avaya B5800 Bedienungsanleitung Seite 69